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The performance specifications are nominal and conform to
acceptable industry standards. For applications at conditions
beyond these specifications, consult the local J ohnson Controls
office.J ohnson Controls, Inc. shall not be liable for damages
resulting from misapplication or misuse of its products. 2009 J
ohnson Controls, Inc. www.johnsoncontrols.com
1 of 2
HE-67xx Series
TRUERH Humidity Element with Temperature Sensors
Code No. LIT-1900122
Issued February 1, 2009
Description
The HE-67xx Series Humidity devices houseboth a humidity and a
temperature sensor in a
wall or duct-mount style. The humidity sensoris capable of
measuring Relative Humidity(RH) over the entire range of 0 to 100%,
andits All-Polymer construction providesimproved resistance to
chemical corrosion.
The TRUERH product line delivers deviceswith RH accuracy of
either 2% or 3% RH.
TRUERH humidity elements produce voltageoutput signals
proportional to measuredhumidity for humidity indication.
Temperature sensors are available in thin-filmnickel, thin-film
platinum, and silicon. Theelements are powered with 14 to 30 VDC
or20 to 30 VAC and feature a user-selectablehumidity output of 0
to10 VDC or 0 to 5 VDC.
Features TRUERH circuitry and calibration
techniques for which patent protection ispending
All-Polymer humidity sensor patentedsensing element provides
accurate andreliable humidity sensing
tested and calibrated with equipmentcertified to be in
compliance with NationalInstitute of Standards and Technology(NIST)
guidelines
2% RH accurate model includes test andcalibration equipment
certificate ofcalibration conformance
humidity and temperature sensors in oneunit eliminates the need
for separatesensors and reduces installation costs
user-selectable output voltage range allowschoice of standard
voltage outputs for usewith systems in service or new systems
all-plastic material for duct probe improvesthermal performance
and complies withUnderwriters Laboratories Inc.(UL)flammability
ratings for plenum use;complies with Blue Angel (Germany) and
TCO'95 (Sweden) environmentalregulations
Selection ChartsHE-67xx Series Wall Mount Models
Code Number Description RHAccuracy
2% 3%
HE-67P2-0N0BT Wall mount humidity element with thin-filmplatinum
temperature sensor
HE-67S2-0N0BT Wall mount humidity element with silicon
temperature sensor
HE-67N2-0N0BT Wall mount humidity element with thin-filmnickel
temperature sensor
HE-67P3-0N0BT Wall mount humidity element with thin-filmplatinum
temperature sensor
HE-67S3-0N0BT 1
1. Compatible with System 350 Humidity Controls
Wall mount humidity element with silicontemperature sensor
HE-67N3-0N0BT Wall mount humidity element with thin-filmnickel
temperature sensor
HE-67xx Series Duct Probe Models
Code Number Description RHAccuracy
2% 3%
HE-67P2-0N00P Duct probe humidity element with thin-filmplatinum
temperature sensor
HE-67S2-0N00P Duct probe humidity element with silicon
temperature sensor
HE-67N2-0N00P Duct probe humidity element with thin-filmnickel
temperature sensor
HE-67P3-0N00P Duct probe humidity element with thin-filmplatinum
temperature sensor
HE-67S3-0N00P 1 Duct probe humidity element with
silicontemperature sensor
HE-67N3-0N00P Duct probe humidity element with thin-filmnickel
temperature sensor
1. Compatible with System 350 Humidity Controls
Accessor ies for HE-67xx Wall Moun t Models1
Code Number Description
GRD10A-608 Plastic Guard with Baseplate and Mounting Ring
T-4000-119 Allen-head Tool (30/bag)
TE-1800-9600 Wall Plate Adaptor Kit required for wallbox
mounting
1. Accessories are available for the wall mount model only.
HE-67xx-0N00P Duct ProbeHE-67xx-0N0BT Wall Mount
TRUERH True 2% Accuracy
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The performance specifications are nominal and conform to
acceptable industry standards. For applications at conditions
beyond these specifications, consult the local J ohnson Controls
office.J ohnson Controls, Inc. shall not be liable for damages
resulting from misapplication or misuse of its products. 2009 J
ohnson Controls, Inc. www.johnsoncontrols.com
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TRUERH Humidity Element with Temperature Sensors (Continued)
Technical Specifications
HE-67xx Series TRUERH Humidit y Element wi th Temperature
Sensors
Power Requirements 14 to 30 VDC or 20 to 30 VAC at 50/60 Hz,
Class 2
Current Draw 3 mA with no load, 25 mA maximum
Acceptab le Wire Gauge 16 to 24 AWG (18 AWG recommended)Humidity
Element
at 77F (25C)Signal 0 to 5 VDC or 0 to 10 VD, 1,000 ohm maximum
load
Accuracy HE-67x2: 2% RH for 20 to 80% RH at 77F (25C)4% RH for
10 to 20% and 80 to 90% RH at 77F (25C)
HE-67x3: 3% RH for 20 to 80% RH at 77F (25C)5% RH for 10 to 20%
and 80 to 90% RH at 77F (25C)
Temperature Coefficient 0.1 to 0.05% RH/C at 5C (41F) to-0.07 to
-0.21% RH/C at 65C (149F)
Response Time Within 5% RH of actual in 15 minutes for 10 to
30%, 30 to 90%, and 40 to 90% RH
TemperatureSensors
Thin-film Nickel Accuracy: 0.34F (0.18C) at 70F (21C)Reference
Resistance: 1000 ohms at 70F (21C)Resistance Change: Approximately
3 ohms/F (5 ohms/C)
Silicon Accuracy: 1F (0.6C) at 70F (21C)Reference Resistance:
1035 ohms at 77F (25C)Resistance Change: Approximately 4 ohms/F (8
ohms/C)
Thin-film Platinum Accuracy: 0.65F at 70F (0.36C at
21C)Reference Resistance: 1000 ohms at 32F (0C)
Resistance Change: Approximately 2 ohms/F (4 ohms/C)
Electrical Connections 3-position and 2-position screw terminal
blocks
Amb ient Operat ing Cond it ions 32 to 140F (0 to 60C)0 to 100%
RH, 85F (29.4C) maximum dew point
Survival Operating Conditio ns -20 to 140F (-29 to 60C)0 to 100%
RH, 85F (29.4C) maximum dew point
Amb ient Storage Condit ion s -40 to 140F (-40 to 60C)0 to 100%
RH, 85F (29.4C) maximum dew point
Materials Wall Mount Beige plastic cover with metal base and
metal foil face plates
Duct Probe White plastic cover with dark gray plastic housing
and probe
Dimensions Wall Mount (H x W x D) 1.81 x 2.12 x 3.12 in. (46 x
54 x 79 mm)
Duct Probe (H x W x D) 3.28 x 3.25 x 8.27 in. (83 x 83 x 210
mm)Probe (L x D): 6.25 x 0.98 in. (159 x 25 mm)
Agency Compl iance Duct Probe Mater ial 94-5V flammability rated
per UL 94
3.1279
2.12
54
1.81
46
he67xx_
ts_
4p.eps
Wall Mount Humidity Element Dimensions , in. (mm)
Diameter
0.98
25
3.25
83
3.28
83
6.25
159
2.02
51
he67xx_
ts_
5p.eps
Duct Probe Humidity Element Dimensions, in. (mm)
